Then were the horse hoofs broken by means of the pransings,
&c.] Either through the force of the waters of the river, where they pranced and plunged, and could have no standing; or through the swift haste they made to run away, striking the earth so quick, and with such force and vehemence, that their hoofs were broken thereby, especially on stony ground, and so their speed retarded:
the pransings of the mighty ones;
either their riders, princes, and great personages, who made them prance, leap, and run with great speed and force; or horses strong and mighty, being such as were selected for this purpose, and trained to war.